6. Susceptible host (person who gets the infection because unable to fight infection (infants, elderly, ill people, children who are not fully immunized or underdeveloped immune system, people taking drugs that lower immune defense, people under stress...)

endogenous

"having an internal cause or origin"

Regarding infection: infectious agent has been in the body already, certain circumstances enable outbreak (e.g. taking antibiotics that weaken good bacteria, weakening of own immune system...)

exogenous

"growing and originating from outside of an organism"

E.g. germs that come from outside and enter the body through a portal of entry

Temporal: most accurate CORE temperature, requires special scanning thermometer, any head covering or side on pillow can produce false high

Rectal: represents CORE temperature, for clients who cannot follow directions, or if accuracy is crucial, risk of injury of mucosa especially infants, presence of stool can lead to false reading

Oral: simple, convenient, safe if patient can follow instructions, slow, can take up to 8 minutes for accurate reading, mouth closed for several minutes, eating, drinking hot/cold before can cause false reading, do not use if breathing problems, chilling, confused, unconscious, oral injury)

Tympanic membrane: fast (2-5 sec.), also uncooperative and unconscious, special thermometer, prone to caregiver errors, cerulean/earwax can cause false reading, risk of injury, uncomfortable, not so accurate, do not with ear injury or infection